Bioassay studies for bruchid (Callosobruchus chinensis) resistance in
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Authors
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JAGGAL SOMAPPA
G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145
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NASEER MOHAMMAD
G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145
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G C BAJPAI
G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145
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S K VERMA
G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145
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REENA JOSHI
G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145
Keywords:
Bioassay, Bruchid resistance, Inter-specific progenies, PigeonpeaAbstract
The results of bioassay indicated that per cent adult emergence, mean time of adult emergence and per cent weight loss were most important parameters which helped in categorizing the genotypes into susceptible or resistant. Out of nine interspecific progenies, one of progeny UPAS120 × scarabaeiodes was found least susceptible for Callosobruchus chinensis, while other progenies in the descending order for resistance to bruchid were UPAS120 × cajanifolius, PA134 × C. scarabaeiodes, PA134 × C. acutifolius, ICPL84023 × C. cajanifolius and ICPL84023 × scarabaeiodes. Since genetic resistance is the cheapest source of resistance in managing the biotic stress, the resistant material found in this study will definitely useful in the pigeonpea improvement programme especially for bruchid resistance.
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References
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